I have a 2014 Sabre 35QSIK and this weekend I had set the AC at 18 degrees, it run for a bit than cut off and wouldn't come back on even though it felt warmer than 18 in the trailer, the only way I got it to cool without stopping was the set it at the lower possible setting (15 degrees)

Also, I noticed that the AC is physically much smaller, does it have the same capacity as the bigger more conventional units?

Problem is, if I set it any higher, it will stop well before the intended temperature! Yesterday it was 24ish outside, set it at 19 and it would stop before hitting 19. I will bring a thermometer next week and see if my "guesswork" is correct!

I wish we had a 50 Amp connection at our site so I could throw on the second AC!

Problem is, if I set it any higher, it will stop well before the intended temperature! Yesterday it was 24ish outside, set it at 19 and it would stop before hitting 19. I will bring a thermometer next week and see if my "guesswork" is correct!

I wish we had a 50 Amp connection at our site so I could throw on the second AC!

FYI - setting the AC well below (more than 10 degrees F) below outside air temperature in a humid air will result in coil icing and AC shutdown to avoid compressor damage.

Drop the air handler filter and you will see a covering of heavy frost. Your unit MUST cycle in order to prevent this. Cycling allows the frost to melt between cooling cycles and remove the humidity.

I dealt with icing in my hybrid before and I am familiar with it! I checked it constantly this weekend because the AC is really bugging me and I saw no evidence of frost what so ever.

I know this is a bigger trailer than my Denali BH311 but it just feels like it doesnt get cold in the trailer.

Ready up on some posts I will look into checking to make sure no cold air is not making it to its destination and will seal everything with aluminium tape.

I think my main concern is that even if I set the Fan to Lo or High, the fan will shut off when the AC goes off and then will not re-start even if the temperature rises. I wonder if I may have a faulty thermostat.

being 2 hours from the dealer and all set up for the season, i hope I can avoid a trip to the dealer!

I think my main concern is that even if I set the Fan to Lo or High, the fan will shut off when the AC goes off and then will not re-start even if the temperature rises. I wonder if I may have a faulty thermostat.

This is certainly possible and an inexpensive test if you know someone whose thermostat can be borrowed. There are several threads here on how to replace/upgrade the OEM thermostats with "Hunter" and "Honeywell" thermostats if you want to try a "home store" solution first.